全文获取类型
收费全文 | 2586694篇 |
免费 | 187646篇 |
国内免费 | 5808篇 |
专业分类
耳鼻咽喉 | 37062篇 |
儿科学 | 82871篇 |
妇产科学 | 74376篇 |
基础医学 | 363623篇 |
口腔科学 | 74551篇 |
临床医学 | 224608篇 |
内科学 | 506890篇 |
皮肤病学 | 60464篇 |
神经病学 | 211677篇 |
特种医学 | 101969篇 |
外国民族医学 | 899篇 |
外科学 | 394101篇 |
综合类 | 58514篇 |
现状与发展 | 8篇 |
一般理论 | 885篇 |
预防医学 | 189968篇 |
眼科学 | 61079篇 |
药学 | 188157篇 |
5篇 | |
中国医学 | 5719篇 |
肿瘤学 | 142722篇 |
出版年
2018年 | 27450篇 |
2017年 | 21349篇 |
2016年 | 24382篇 |
2015年 | 27403篇 |
2014年 | 37805篇 |
2013年 | 56783篇 |
2012年 | 76615篇 |
2011年 | 80365篇 |
2010年 | 47505篇 |
2009年 | 45185篇 |
2008年 | 75829篇 |
2007年 | 81440篇 |
2006年 | 82375篇 |
2005年 | 80458篇 |
2004年 | 77218篇 |
2003年 | 74465篇 |
2002年 | 72657篇 |
2001年 | 122176篇 |
2000年 | 125196篇 |
1999年 | 105310篇 |
1998年 | 29427篇 |
1997年 | 26598篇 |
1996年 | 25975篇 |
1995年 | 24561篇 |
1994年 | 22624篇 |
1993年 | 21083篇 |
1992年 | 79820篇 |
1991年 | 76625篇 |
1990年 | 74537篇 |
1989年 | 71864篇 |
1988年 | 66507篇 |
1987年 | 65158篇 |
1986年 | 61896篇 |
1985年 | 58766篇 |
1984年 | 44581篇 |
1983年 | 37692篇 |
1982年 | 22937篇 |
1981年 | 20692篇 |
1979年 | 41227篇 |
1978年 | 29325篇 |
1977年 | 25020篇 |
1976年 | 22947篇 |
1975年 | 25163篇 |
1974年 | 29858篇 |
1973年 | 29049篇 |
1972年 | 27622篇 |
1971年 | 25457篇 |
1970年 | 24250篇 |
1969年 | 22983篇 |
1968年 | 21722篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
951.
C B Stacy 《Cortex; a journal devoted to the study of the nervous system and behavior》1987,23(2):337-340
A patient with biparietal lesions demonstrated complex stereognostic hallucinations and recurrent haptic sensations. Although there was complete astereognosis and palpatory apraxia, she palpated the hallucinated objects appropriately. A second patient with ictal haptic hallucinations is described, and the one case previously reported in the literature. Some observations and speculations are made concerning these rare phenomena. 相似文献
952.
Imipenem (N-F-thienamycin) versus netilmicin plus clindamycin. A controlled and randomized comparison in intra-abdominal infections 总被引:1,自引:0,他引:1
下载免费PDF全文
![点击此处可从《Annals of surgery》网站下载免费的PDF全文](/ch/ext_images/free.gif)
In a randomized study the clinical and bacteriologic effectiveness of imipenem was compared with the classical combination of netilmicin with clindamycin in patients who had surgery for an intraperitoneal infection, localized or generalized, with positive bacteriologic findings of the specimen taken at surgery. Excluded were all patients who received other antibiotics before surgery, or who died within 3 days after antibiotic therapy was started. Imipenem was given at a dose of 500 mg t.i.d., clindamycin 600 mg t.i.d., and netilmicin according to serum levels. The diagnoses ranged from postoperative peritonitis, gallbladder empyema, perforated gastroduodenal ulcer, small bowel perforation with and without obstruction, and perforated appendicitis to perforation of the colon. The bacteriologic work-up included examination of the primary specimen (aerobic and anaerobic), the urine, feces, and serologic testing for Candida albicans once or twice a week and after the course of antibiotic therapy. In addition, pH measurements of abscesses and drainage fluids were performed. Ninety-three patients entered the study. Forty-seven patients were treated with imipenem (test group), and 46 patients were treated with the combination therapy (control group). The two groups did not show significant differences in age, sex, diagnostic groups, risk factors, primary bacteriology, and duration of therapy (mean: 6.7 days). Thirty-eight patients (80.9%) treated with imipenem were cured, six patients (12.8%) were improved, and there were three (6.4%) failures. The respective numbers for the control group were 31 (67.4%), 10 (21.7%), and 5 (10.9%). The mean duration of hospitalization was 19 days for the test group and 24.5 days for the control group. There were four wound infections in the test group and 11 wound infections in the control group. Imipenem is at least as effective in the adjuvant therapy of intra-abdominal infections as the combination of netilmicin with clindamycin. 相似文献
953.
Reported in this paper are postoperative results recorded from 120 patients, 3 years after selective proximal vagotomy for uncomplicated duodenal ulcer. There was no intraoperative lethality and no recurrence in 96.7 per cent of all cases, while Visick grades I on II were recorded from 98.2 per cent. Radiologically and gastroscopically detected pathological processes receded soon. Average postoperative reduction in acid secretion was 66.2 per cent in BAO and 46.8 per cent in MAO. Acid values re-increased thereafter, and three years later reduction rates still amounted to 43.7 per cent in BAO and 28.6 per cent in MAO. Indications for proximal gastric vagotomy are discussed in some detail. 相似文献
954.
Two cases are presented in which the cause of small-bowel obstruction was enterolith originating in jejunal diverticula. 相似文献
955.
Ambient light affects pulse oximeters 总被引:1,自引:0,他引:1
956.
957.
958.
959.
M K Jackson C E Hutton R M Kleyle C E Tomich 《Oral surgery, oral medicine, and oral pathology》1987,63(2):162-166
For a variety of reasons, the past few years have brought about a tremendous emphasis on conditions affecting the temporomandibular joint and associated structures. Although important advances are being made relative to the diagnosis and treatment of these conditions, a myriad of problems remain for the practitioner who tries to sort through the literature or who attends courses in order to determine a means for properly diagnosing and treating these patients. This article attempts to develop correlations between certain clinical and radiographic findings documented by histologic evaluation as a beginning guide to more sound diagnosis. 相似文献
960.